def eventFilter(self, source, event: QtCore.QEvent):
if source is self._scene:
if event.type() == QtCore.QEvent.GraphicsSceneMouseRelease and\
event.button() == QtCore.Qt.LeftButton and\
event.scenePos().x() >= 0 and event.scenePos().x() < self._scene.width() and\
event.scenePos().y() >= 0 and event.scenePos().y() < self._scene.height():
pos = event.scenePos()
box_clicked_x = self.windowToSquareX(pos.x())
box_clicked_y = self.windowToSquareYInv(pos.y())
new_origin = int(box_clicked_x +
box_clicked_y * self.hor_pixels)
if not self.shift_down:
self.curr_origins.clear()
self.curr_origins.add(new_origin)
print(self.curr_origins)
self.originsUpdated.emit(self.curr_origins)
elif event.type() == QtCore.QEvent.GraphicsSceneMouseMove:
self.onMouseHover(event.scenePos())
elif event.type() == QtCore.QEvent.KeyPress:
if event.key() == QtCore.Qt.Key_Shift:
self.shift_down = True
elif event.type() == QtCore.QEvent.KeyRelease:
if event.key() == QtCore.Qt.Key_Shift:
self.shift_down = False
return widgets.QWidget.eventFilter(self, source, event)
def _getHitPortItemOrNone(self,
event: QEvent) -> _tp.Optional[PortItemBase]:
fromPort = self._currentlyDraggedConnectionFromPort
mousePosition = event.scenePos()
relevantPortItems = self._getRelevantHitPortItems(
mousePosition, fromPort)
if not relevantPortItems:
return None
numberOfHitPortsItems = len(relevantPortItems)
if numberOfHitPortsItems > 1:
raise NotImplementedError(
"Can't deal with overlapping port items.")
hitPortItem = relevantPortItems[0]
return hitPortItem